A Rydberg atom array coupled to a high-cooperativity optical cavity
Abstract
Integrating Rydberg-state control of atom-atom interactions with cavity control of atom-light interactions enables the combination of local entangling operations with photon-mediated long-range coupling, measurement, and communication. Such integration is challenging because electric fields generated by charges on cavity optics and by cavity-stabilizing actuators may disturb Rydberg-state coherence. Here, we couple a Rydberg tweezer array to a high-cooperativity optical cavity, suppressing the electric fields produced by cavity length actuation so that the residual field variation of about 3 mV/cm rms does not limit Rydberg coherence. We demonstrate two capabilities that neither system provides alone. First, we use Purcell-enhanced fluorescence to read out atoms directly in the ground-Rydberg basis within 7.5 μs, well within the Rydberg-state lifetime, with ground- and Rydberg-state detection infidelities of 3% and 5%, respectively, and with low atom loss. Second, we use Rydberg-Rydberg interactions to control collective light-atom scattering into the cavity mode. Specifically, we drive blockaded Rabi oscillations between a state with two ground-state atoms, which scatter collectively with a superradiant or subradiant rate controlled by the atomic positions, and an entangled state with a single Rydberg excitation, which scatters like a single atom. These capabilities open routes toward networked Rydberg processors, mid-circuit measurements in analog quantum simulators, and many-body quantum optics with entangled emitters coupled collectively to light.
Related
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- Realization of a cavity-coupled Rydberg array
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BibTeX
@misc{xiang2026rydberg,
title = {{A Rydberg atom array coupled to a high-cooperativity optical cavity}},
author = {Tai Xiang and Yue-Hui Lu and Tsai-Chen Lee and Jacquelyn Ho and Michael Lan and Zhenjie Yan and Harry Levine and Nathaniel B. Vilas and Dan M. Stamper-Kurn},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.20889},
eprint = {2610.20889},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.20889},
}
RIS
TY - UNPB
TI - A Rydberg atom array coupled to a high-cooperativity optical cavity
AU - Tai Xiang
AU - Yue-Hui Lu
AU - Tsai-Chen Lee
AU - Jacquelyn Ho
AU - Michael Lan
AU - Zhenjie Yan
AU - Harry Levine
AU - Nathaniel B. Vilas
AU - Dan M. Stamper-Kurn
PY - 2026
DA - 2026/10/16
PB - arXiv
DO - 10.48550/arxiv.2610.20889
UR - https://arxiv.org/abs/2610.20889
AB - Integrating Rydberg-state control of atom-atom interactions with cavity control of atom-light interactions enables the combination of local entangling operations with photon-mediated long-range coupling, measurement, and communication. Such integration is challenging because electric fields generated by charges on cavity optics and by cavity-stabilizing actuators may disturb Rydberg-state coherence. Here, we couple a Rydberg tweezer array to a high-cooperativity optical cavity, suppressing the electric fields produced by cavity length actuation so that the residual field variation of about 3 mV/cm rms does not limit Rydberg coherence. We demonstrate two capabilities that neither system provides alone. First, we use Purcell-enhanced fluorescence to read out atoms directly in the ground-Rydberg basis within 7.5 μs, well within the Rydberg-state lifetime, with ground- and Rydberg-state detection infidelities of 3% and 5%, respectively, and with low atom loss. Second, we use Rydberg-Rydberg interactions to control collective light-atom scattering into the cavity mode. Specifically, we drive blockaded Rabi oscillations between a state with two ground-state atoms, which scatter collectively with a superradiant or subradiant rate controlled by the atomic positions, and an entangled state with a single Rydberg excitation, which scatters like a single atom. These capabilities open routes toward networked Rydberg processors, mid-circuit measurements in analog quantum simulators, and many-body quantum optics with entangled emitters coupled collectively to light.
ER -